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generated by cgit v1.2.2 (git 2.25.0) at 2024-12-30 01:52:38 -0500
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/* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _I915_REG_H_
#define _I915_REG_H_

#define _PIPE(pipe, a, b) ((a) + (pipe)*((b)-(a)))

#define _PORT(port, a, b) ((a) + (port)*((b)-(a)))

/*
 * The Bridge device's PCI config space has information about the
 * fb aperture size and the amount of pre-reserved memory.
 * This is all handled in the intel-gtt.ko module. i915.ko only
 * cares about the vga bit for the vga rbiter.
 */
#define INTEL_GMCH_CTRL		0x52
#define INTEL_GMCH_VGA_DISABLE  (1 << 1)

/* PCI config space */

#define HPLLCC	0xc0 /* 855 only */
#define   GC_CLOCK_CONTROL_MASK		(0xf << 0)
#define   GC_CLOCK_133_200		(0 << 0)
#define   GC_CLOCK_100_200		(1 << 0)
#define   GC_CLOCK_100_133		(2 << 0)
#define   GC_CLOCK_166_250		(3 << 0)
#define GCFGC2	0xda
#define GCFGC	0xf0 /* 915+ only */
#define   GC_LOW_FREQUENCY_ENABLE	(1 << 7)
#define   GC_DISPLAY_CLOCK_190_200_MHZ	(0 << 4)
#define   GC_DISPLAY_CLOCK_333_MHZ	(4 << 4)
#define   GC_DISPLAY_CLOCK_MASK		(7 << 4)
#define   GM45_GC_RENDER_CLOCK_MASK	(0xf << 0)
#define   GM45_GC_RENDER_CLOCK_266_MHZ	(8 << 0)
#define   GM45_GC_RENDER_CLOCK_320_MHZ	(9 << 0)
#define   GM45_GC_RENDER_CLOCK_400_MHZ	(0xb << 0)
#define   GM45_GC_RENDER_CLOCK_533_MHZ	(0xc << 0)
#define   I965_GC_RENDER_CLOCK_MASK	(0xf << 0)
#define   I965_GC_RENDER_CLOCK_267_MHZ	(2 << 0)
#define   I965_GC_RENDER_CLOCK_333_MHZ	(3 << 0)
#define   I965_GC_RENDER_CLOCK_444_MHZ	(4 << 0)
#define   I965_GC_RENDER_CLOCK_533_MHZ	(5 << 0)
#define   I945_GC_RENDER_CLOCK_MASK	(7 << 0)
#define   I945_GC_RENDER_CLOCK_166_MHZ	(0 << 0)
#define   I945_GC_RENDER_CLOCK_200_MHZ	(1 << 0)
#define   I945_GC_RENDER_CLOCK_250_MHZ	(3 << 0)
#define   I945_GC_RENDER_CLOCK_400_MHZ	(5 << 0)
#define   I915_GC_RENDER_CLOCK_MASK	(7 << 0)
#define   I915_GC_RENDER_CLOCK_166_MHZ	(0 << 0)
#define   I915_GC_RENDER_CLOCK_200_MHZ	(1 << 0)
#define   I915_GC_RENDER_CLOCK_333_MHZ	(4 << 0)
#define LBB	0xf4

/* Graphics reset regs */
#define I965_GDRST 0xc0 /* PCI config register */
#define ILK_GDSR 0x2ca4 /* MCHBAR offset */
#define  GRDOM_FULL	(0<<2)
#define  GRDOM_RENDER	(1<<2)
#define  GRDOM_MEDIA	(3<<2)

#define GEN6_MBCUNIT_SNPCR	0x900c /* for LLC config */
#define   GEN6_MBC_SNPCR_SHIFT	21
#define   GEN6_MBC_SNPCR_MASK	(3<<21)
#define   GEN6_MBC_SNPCR_MAX	(0<<21)
#define   GEN6_MBC_SNPCR_MED	(1<<21)
#define   GEN6_MBC_SNPCR_LOW	(2<<21)
#define   GEN6_MBC_SNPCR_MIN	(3<<21) /* only 1/16th of the cache is shared */

#define GEN6_MBCTL		0x0907c
#define   GEN6_MBCTL_ENABLE_BOOT_FETCH	(1 << 4)
#define   GEN6_MBCTL_CTX_FETCH_NEEDED	(1 << 3)
#define   GEN6_MBCTL_BME_UPDATE_ENABLE	(1 << 2)
#define   GEN6_MBCTL_MAE_UPDATE_ENABLE	(1 << 1)
#define   GEN6_MBCTL_BOOT_FETCH_MECH	(1 << 0)

#define GEN6_GDRST	0x941c
#define  GEN6_GRDOM_FULL		(1 << 0)
#define  GEN6_GRDOM_RENDER		(1 << 1)
#define  GEN6_GRDOM_MEDIA		(1 << 2)
#define  GEN6_GRDOM_BLT			(1 << 3)

/* PPGTT stuff */
#define GEN6_GTT_ADDR_ENCODE(addr)	((addr) | (((addr) >> 28) & 0xff0))

#define GEN6_PDE_VALID			(1 << 0)
#define GEN6_PDE_LARGE_PAGE		(2 << 0) /* use 32kb pages */
/* gen6+ has bit 11-4 for physical addr bit 39-32 */
#define GEN6_PDE_ADDR_ENCODE(addr)	GEN6_GTT_ADDR_ENCODE(addr)

#define GEN6_PTE_VALID			(1 << 0)
#define GEN6_PTE_UNCACHED		(1 << 1)
#define GEN6_PTE_CACHE_LLC		(2 << 1)
#define GEN6_PTE_CACHE_LLC_MLC		(3 << 1)
#define GEN6_PTE_CACHE_BITS		(3 << 1)
#define GEN6_PTE_GFDT			(1 << 3)
#define GEN6_PTE_ADDR_ENCODE(addr)	GEN6_GTT_ADDR_ENCODE(addr)

#define RING_PP_DIR_BASE(ring)		((ring)->mmio_base+0x228)
#define RING_PP_DIR_BASE_READ(ring)	((ring)->mmio_base+0x518)
#define RING_PP_DIR_DCLV(ring)		((ring)->mmio_base+0x220)
#define   PP_DIR_DCLV_2G		0xffffffff

#define GAM_ECOCHK			0x4090
#define   ECOCHK_SNB_BIT		(1<<10)
#define   ECOCHK_PPGTT_CACHE64B		(0x3<<3)
#define   ECOCHK_PPGTT_CACHE4B		(0x0<<3)

/* VGA stuff */

#define VGA_ST01_MDA 0x3ba
#define VGA_ST01_CGA 0x3da

#define VGA_MSR_WRITE 0x3c2
#define VGA_MSR_READ 0x3cc
#define   VGA_MSR_MEM_EN (1<<1)
#define   VGA_MSR_CGA_MODE (1<<0)

#define VGA_SR_INDEX 0x3c4
#define VGA_SR_DATA 0x3c5

#define VGA_AR_INDEX 0x3c0
#define   VGA_AR_VID_EN (1<<5)
#define VGA_AR_DATA_WRITE 0x3c0
#define VGA_AR_DATA_READ 0x3c1

#define VGA_GR_INDEX 0x3ce
#define VGA_GR_DATA 0x3cf
/* GR05 */
#define   VGA_GR_MEM_READ_MODE_SHIFT 3
#define     VGA_GR_MEM_READ_MODE_PLANE 1
/* GR06 */
#define   VGA_GR_MEM_MODE_MASK 0xc
#define   VGA_GR_MEM_MODE_SHIFT 2
#define   VGA_GR_MEM_A0000_AFFFF 0
#define   VGA_GR_MEM_A0000_BFFFF 1
#define   VGA_GR_MEM_B0000_B7FFF 2
#define   VGA_GR_MEM_B0000_BFFFF 3

#define VGA_DACMASK 0x3c6
#define VGA_DACRX 0x3c7
#define VGA_DACWX 0x3c8
#define VGA_DACDATA 0x3c9

#define VGA_CR_INDEX_MDA 0x3b4
#define VGA_CR_DATA_MDA 0x3b5
#define VGA_CR_INDEX_CGA 0x3d4
#define VGA_CR_DATA_CGA 0x3d5

/*
 * Memory interface instructions used by the kernel
 */
#define MI_INSTR(opcode, flags) (((opcode) << 23) | (flags))

#define MI_NOOP			MI_INSTR(0, 0)
#define MI_USER_INTERRUPT	MI_INSTR(0x02, 0)
#define MI_WAIT_FOR_EVENT       MI_INSTR(0x03, 0)
#define   MI_WAIT_FOR_OVERLAY_FLIP	(1<<16)
#define   MI_WAIT_FOR_PLANE_B_FLIP      (1<<6)
#define   MI_WAIT_FOR_PLANE_A_FLIP      (1<<2)
#define   MI_WAIT_FOR_PLANE_A_SCANLINES (1<<1)
#define MI_FLUSH		MI_INSTR(0x04, 0)
#define   MI_READ_FLUSH		(1 << 0)
#define   MI_EXE_FLUSH		(1 << 1)
#define   MI_NO_WRITE_FLUSH	(1 << 2)
#define   MI_SCENE_COUNT	(1 << 3) /* just increment scene count */
#define   MI_END_SCENE		(1 << 4) /* flush binner and incr scene count */
#define   MI_INVALIDATE_ISP	(1 << 5) /* invalidate indirect state pointers */
#define MI_BATCH_BUFFER_END	MI_INSTR(0x0a, 0)
#define MI_SUSPEND_FLUSH	MI_INSTR(0x0b, 0)
#define   MI_SUSPEND_FLUSH_EN	(1<<0)
#define MI_REPORT_HEAD		MI_INSTR(0x07, 0)
#define MI_OVERLAY_FLIP		MI_INSTR(0x11, 0)
#define   MI_OVERLAY_CONTINUE	(0x0<<21)
#define   MI_OVERLAY_ON		(0x1<<21)
#define   MI_OVERLAY_OFF	(0x2<<21)
#define MI_LOAD_SCAN_LINES_INCL MI_INSTR(0x12, 0)
#define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
#define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
#define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
#define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
#define   MI_MM_SPACE_GTT		(1<<8)
#define   MI_MM_SPACE_PHYSICAL		(0<<8)
#define   MI_SAVE_EXT_STATE_EN		(1<<3)
#define   MI_RESTORE_EXT_STATE_EN	(1<<2)
#define   MI_FORCE_RESTORE		(1<<1)
#define   MI_RESTORE_INHIBIT		(1<<0)
#define MI_STORE_DWORD_IMM	MI_INSTR(0x20, 1)
#define   MI_MEM_VIRTUAL	(1 << 22) /* 965+ only */
#define MI_STORE_DWORD_INDEX	MI_INSTR(0x21, 1)
#define   MI_STORE_DWORD_INDEX_SHIFT 2
/* Official intel docs are somewhat sloppy concerning MI_LOAD_REGISTER_IMM:
 * - Always issue a MI_NOOP _before_ the MI_LOAD_REGISTER_IMM - otherwise hw
 *   simply ignores the register load under certain conditions.
 * - One can actually load arbitrary many arbitrary registers: Simply issue x
 *   address/value pairs. Don't overdue it, though, x <= 2^4 must hold!
 */
#define MI_LOAD_REGISTER_IMM(x)	MI_INSTR(0x22, 2*x-1)
#define MI_FLUSH_DW		MI_INSTR(0x26, 1) /* for GEN6 */
#define   MI_INVALIDATE_TLB	(1<<18)
#define   MI_INVALIDATE_BSD	(1<<7)
#define MI_BATCH_BUFFER		MI_INSTR(0x30, 1)
#define   MI_BATCH_NON_SECURE	(1)
#define   MI_BATCH_NON_SECURE_I965 (1<<8)
#define MI_BATCH_BUFFER_START	MI_INSTR(0x31, 0)
#define MI_SEMAPHORE_MBOX	MI_INSTR(0x16, 1) /* gen6+ */
#define  MI_SEMAPHORE_GLOBAL_GTT    (1<<22)
#define  MI_SEMAPHORE_UPDATE	    (1<<21)
#define  MI_SEMAPHORE_COMPARE	    (1<<20)
#define  MI_SEMAPHORE_REGISTER	    (1<<18)
#define  MI_SEMAPHORE_SYNC_RV	    (2<<16)
#define  MI_SEMAPHORE_SYNC_RB	    (0<<16)
#define  MI_SEMAPHORE_SYNC_VR	    (0<<16)
#define  MI_SEMAPHORE_SYNC_VB	    (2<<16)
#define  MI_SEMAPHORE_SYNC_BR	    (2<<16)
#define  MI_SEMAPHORE_SYNC_BV	    (0<<16)
#define  MI_SEMAPHORE_SYNC_INVALID  (1<<0)
/*
 * 3D instructions used by the kernel
 */
#define GFX_INSTR(opcode, flags) ((0x3 << 29) | ((opcode) << 24) | (flags))

#define GFX_OP_RASTER_RULES    ((0x3<<29)|(0x7<<24))
#define GFX_OP_SCISSOR         ((0x3<<29)|(0x1c<<24)|(0x10<<19))
#define   SC_UPDATE_SCISSOR       (0x1<<1)
#define   SC_ENABLE_MASK          (0x1<<0)
#define   SC_ENABLE               (0x1<<0)
#define GFX_OP_LOAD_INDIRECT   ((0x3<<29)|(0x1d<<24)|(0x7<<16))
#define GFX_OP_SCISSOR_INFO    ((0x3<<29)|(0x1d<<24)|(0x81<<16)|(0x1))
#define   SCI_YMIN_MASK      (0xffff<<16)
#define   SCI_XMIN_MASK      (0xffff<<0)
#define   SCI_YMAX_MASK      (0xffff<<16)
#define   SCI_XMAX_MASK      (0xffff<<0)
#define GFX_OP_SCISSOR_ENABLE	 ((0x3<<29)|(0x1c<<24)|(0x10<<19))
#define GFX_OP_SCISSOR_RECT	 ((0x3<<29)|(0x1d<<24)|(0x81<<16)|1)
#define GFX_OP_COLOR_FACTOR      ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
#define GFX_OP_STIPPLE           ((0x3<<29)|(0x1d<<24)|(0x83<<16))
#define GFX_OP_MAP_INFO          ((0x3<<29)|(0x1d<<24)|0x4)
#define GFX_OP_DESTBUFFER_VARS   ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
#define GFX_OP_DESTBUFFER_INFO	 ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1)
#define GFX_OP_DRAWRECT_INFO     ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
#define GFX_OP_DRAWRECT_INFO_I965  ((0x7900<<16)|0x2)
#define SRC_COPY_BLT_CMD                ((2<<29)|(0x43<<22)|4)
#define XY_SRC_COPY_BLT_CMD		((2<<29)|(0x53<<22)|6)
#define XY_MONO_SRC_COPY_IMM_BLT	((2<<29)|(0x71<<22)|5)
#define XY_SRC_COPY_BLT_WRITE_ALPHA	(1<<21)
#define XY_SRC_COPY_BLT_WRITE_RGB	(1<<20)
#define   BLT_DEPTH_8			(0<<24)
#define   BLT_DEPTH_16_565		(1<<24)
#define   BLT_DEPTH_16_1555		(2<<24)
#define   BLT_DEPTH_32			(3<<24)
#define   BLT_ROP_GXCOPY		(0xcc<<16)
#define XY_SRC_COPY_BLT_SRC_TILED	(1<<15) /* 965+ only */
#define XY_SRC_COPY_BLT_DST_TILED	(1<<11) /* 965+ only */
#define CMD_OP_DISPLAYBUFFER_INFO ((0x0<<29)|(0x14<<23)|2)
#define   ASYNC_FLIP                (1<<22)
#define   DISPLAY_PLANE_A           (0<<20)
#define   DISPLAY_PLANE_B           (1<<20)
#define GFX_OP_PIPE_CONTROL(len)	((0x3<<29)|(0x3<<27)|(0x2<<24)|(len-2))
#define   PIPE_CONTROL_CS_STALL				(1<<20)
#define   PIPE_CONTROL_QW_WRITE				(1<<14)
#define   PIPE_CONTROL_DEPTH_STALL			(1<<13)
#define   PIPE_CONTROL_WRITE_FLUSH			(1<<12)
#define   PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH	(1<<12) /* gen6+ */
#define   PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE	(1<<11) /* MBZ on Ironlake */
#define   PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE		(1<<10) /* GM45+ only */
#define   PIPE_CONTROL_INDIRECT_STATE_DISABLE		(1<<9)
#define   PIPE_CONTROL_NOTIFY				(1<<8)
#define   PIPE_CONTROL_VF_CACHE_INVALIDATE		(1<<4)
#define   PIPE_CONTROL_CONST_CACHE_INVALIDATE		(1<<3)
#define   PIPE_CONTROL_STATE_CACHE_INVALIDATE		(1<<2)
#define   PIPE_CONTROL_STALL_AT_SCOREBOARD		(1<<1)
#define   PIPE_CONTROL_DEPTH_CACHE_FLUSH		(1<<0)
#define   PIPE_CONTROL_GLOBAL_GTT (1<<2) /* in addr dword */


/*
 * Reset registers
 */
#define DEBUG_RESET_I830		0x6070
#define  DEBUG_RESET_FULL		(1<<7)
#define  DEBUG_RESET_RENDER		(1<<8)
#define  DEBUG_RESET_DISPLAY		(1<<9)

/*
 * DPIO - a special bus for various display related registers to hide behind:
 *  0x800c: m1, m2, n, p1, p2, k dividers
 *  0x8014: REF and SFR select
 *  0x8014: N divider, VCO select
 *  0x801c/3c: core clock bits
 *  0x8048/68: low pass filter coefficients
 *  0x8100: fast clock controls
 */
#define DPIO_PKT			0x2100
#define  DPIO_RID			(0<<24)
#define  DPIO_OP_WRITE			(1<<16)
#define  DPIO_OP_READ			(0<<16)
#define  DPIO_PORTID			(0x12<<8)
#define  DPIO_BYTE			(0xf<<4)
#define  DPIO_BUSY			(1<<0) /* status only */
#define DPIO_DATA			0x2104
#define DPIO_REG			0x2108
#define DPIO_CTL			0x2110
#define  DPIO_MODSEL1			(1<<3) /* if ref clk b == 27 */
#define  DPIO_MODSEL0			(1<<2) /* if ref clk a == 27 */
#define  DPIO_SFR_BYPASS		(1<<1)
#define  DPIO_RESET			(1<<0)

#define _DPIO_DIV_A			0x800c
#define   DPIO_POST_DIV_SHIFT		(28) /* 3 bits */
#define   DPIO_K_SHIFT			(24) /* 4 bits */
#define   DPIO_P1_SHIFT			(21) /* 3 bits */
#define   DPIO_P2_SHIFT			(16) /* 5 bits */
#define   DPIO_N_SHIFT			(12) /* 4 bits */
#define   DPIO_ENABLE_CALIBRATION	(1<<11)
#define   DPIO_M1DIV_SHIFT		(8) /* 3 bits */
#define   DPIO_M2DIV_MASK		0xff
#define _DPIO_DIV_B			0x802c
#define DPIO_DIV(pipe) _PIPE(pipe, _DPIO_DIV_A, _DPIO_DIV_B)

#define _DPIO_REFSFR_A			0x8014
#define   DPIO_REFSEL_OVERRIDE		27
#define   DPIO_PLL_MODESEL_SHIFT	24 /* 3 bits */
#define   DPIO_BIAS_CURRENT_CTL_SHIFT	21 /* 3 bits, always 0x7 */
#define   DPIO_PLL_REFCLK_SEL_SHIFT	16 /* 2 bits */
#define   DPIO_DRIVER_CTL_SHIFT		12 /* always set to 0x8 */
#define   DPIO_CLK_BIAS_CTL_SHIFT	8 /* always set to 0x5 */
#define _DPIO_REFSFR_B			0x8034
#define DPIO_REFSFR(pipe) _PIPE(pipe, _DPIO_REFSFR_A, _DPIO_REFSFR_B)

#define _DPIO_CORE_CLK_A		0x801c
#define _DPIO_CORE_CLK_B		0x803c
#define DPIO_CORE_CLK(pipe) _PIPE(pipe, _DPIO_CORE_CLK_A, _DPIO_CORE_CLK_B)

#define _DPIO_LFP_COEFF_A		0x8048
#define _DPIO_LFP_COEFF_B		0x8068
#define DPIO_LFP_COEFF(pipe) _PIPE(pipe, _DPIO_LFP_COEFF_A, _DPIO_LFP_COEFF_B)

#define DPIO_FASTCLK_DISABLE		0x8100

/*
 * Fence registers
 */
#define FENCE_REG_830_0			0x2000
#define FENCE_REG_945_8			0x3000
#define   I830_FENCE_START_MASK		0x07f80000
#define   I830_FENCE_TILING_Y_SHIFT	12
#define   I830_FENCE_SIZE_BITS(size)	((ffs((size) >> 19) - 1) << 8)
#define   I830_FENCE_PITCH_SHIFT	4
#define   I830_FENCE_REG_VALID		(1<<0)
#define   I915_FENCE_MAX_PITCH_VAL	4
#define   I830_FENCE_MAX_PITCH_VAL	6
#define   I830_FENCE_MAX_SIZE_VAL	(1<<8)

#define   I915_FENCE_START_MASK		0x0ff00000
#define   I915_FENCE_SIZE_BITS(size)	((ffs((size) >> 20) - 1) << 8)

#define FENCE_REG_965_0			0x03000
#define   I965_FENCE_PITCH_SHIFT	2
#define   I965_FENCE_TILING_Y_SHIFT	1
#define   I965_FENCE_REG_VALID		(1<<0)
#define   I965_FENCE_MAX_PITCH_VAL	0x0400

#define FENCE_REG_SANDYBRIDGE_0		0x100000
#define   SANDYBRIDGE_FENCE_PITCH_SHIFT	32

/* control register for cpu gtt access */
#define TILECTL				0x101000
#define   TILECTL_SWZCTL			(1 << 0)
#define   TILECTL_TLB_PREFETCH_DIS	(1 << 2)
#define   TILECTL_BACKSNOOP_DIS		(1 << 3)

/*
 * Instruction and interrupt control regs
 */
#define PGTBL_ER	0x02024
#define RENDER_RING_BASE	0x02000
#define BSD_RING_BASE		0x04000
#define GEN6_BSD_RING_BASE	0x12000
#define BLT_RING_BASE		0x22000
#define RING_TAIL(base)		((base)+0x30)
#define RING_HEAD(base)		((base)+0x34)
#define RING_START(base)	((base)+0x38)
#define RING_CTL(base)		((base)+0x3c)
#define RING_SYNC_0(base)	((base)+0x40)
#define RING_SYNC_1(base)	((base)+0x44)
#define GEN6_RVSYNC (RING_SYNC_0(RENDER_RING_BASE))
#define GEN6_RBSYNC (RING_SYNC_1(RENDER_RING_BASE))
#define GEN6_VRSYNC (RING_SYNC_1(GEN6_BSD_RING_BASE))
#define GEN6_VBSYNC (RING_SYNC_0(GEN6_BSD_RING_BASE))
#define GEN6_BRSYNC (RING_SYNC_0(BLT_RING_BASE))
#define GEN6_BVSYNC (RING_SYNC_1(BLT_RING_BASE))
#define RING_MAX_IDLE(base)	((base)+0x54)
#define RING_HWS_PGA(base)	((base)+0x80)
#define RING_HWS_PGA_GEN6(base)	((base)+0x2080)
#define ARB_MODE		0x04030
#define   ARB_MODE_SWIZZLE_SNB	(1<<4)
#define   ARB_MODE_SWIZZLE_IVB	(1<<5)
#define   ARB_MODE_ENABLE(x)	GFX_MODE_ENABLE(x)
#define   ARB_MODE_DISABLE(x)	GFX_MODE_DISABLE(x)
#define RENDER_HWS_PGA_GEN7	(0x04080)
#define RING_FAULT_REG(ring)	(0x4094 + 0x100*(ring)->id)
#define DONE_REG		0x40b0
#define BSD_HWS_PGA_GEN7	(0x04180)
#define BLT_HWS_PGA_GEN7	(0x04280)
#define RING_ACTHD(base)	((base)+0x74)
#define RING_NOPID(base)	((base)+0x94)
#define RING_IMR(base)		((base)+0xa8)
#define   TAIL_ADDR		0x001FFFF8
#define   HEAD_WRAP_COUNT	0xFFE00000
#define   HEAD_WRAP_ONE		0x00200000
#define   HEAD_ADDR		0x001FFFFC
#define   RING_NR_PAGES		0x001FF000
#define   RING_REPORT_MASK	0x00000006
#define   RING_REPORT_64K	0x00000002
#define   RING_REPORT_128K	0x00000004
#define   RING_NO_REPORT	0x00000000
#define   RING_VALID_MASK	0x00000001
#define   RING_VALID		0x00000001
#define   RING_INVALID		0x00000000
#define   RING_WAIT_I8XX	(1<<0) /* gen2, PRBx_HEAD */
#define   RING_WAIT		(1<<11) /* gen3+, PRBx_CTL */
#define   RING_WAIT_SEMAPHORE	(1<<10) /* gen6+ */
#if 0
#define PRB0_TAIL	0x02030
#define PRB0_HEAD	0x02034
#define PRB0_START	0x02038
#define PRB0_CTL	0x0203c
#define PRB1_TAIL	0x02040 /* 915+ only */
#define PRB1_HEAD	0x02044 /* 915+ only */
#define PRB1_START	0x02048 /* 915+ only */
#define PRB1_CTL	0x0204c /* 915+ only */
#endif
#define IPEIR_I965	0x02064
#define IPEHR_I965	0x02068
#define INSTDONE_I965	0x0206c
#define RING_IPEIR(base)	((base)+0x64)
#define RING_IPEHR(base)	((base)+0x68)
#define RING_INSTDONE(base)	((base)+0x6c)
#define RING_INSTPS(base)	((base)+0x70)
#define RING_DMA_FADD(base)	((base)+0x78)
#define RING_INSTPM(base)	((base)+0xc0)
#define INSTPS		0x02070 /* 965+ only */
#define INSTDONE1	0x0207c /* 965+ only */
#define ACTHD_I965	0x02074
#define HWS_PGA		0x02080
#define HWS_ADDRESS_MASK	0xfffff000
#define HWS_START_ADDRESS_SHIFT	4
#define PWRCTXA		0x2088 /* 965GM+ only */
#define   PWRCTX_EN	(1<<0)
#define IPEIR		0x02088
#define IPEHR		0x0208c
#define INSTDONE	0x02090
#define NOPID		0x02094
#define HWSTAM		0x02098

#define ERROR_GEN6	0x040a0

/* GM45+ chicken bits -- debug workaround bits that may be required
 * for various sorts of correct behavior.  The top 16 bits of each are
 * the enables for writing to the corresponding low bit.
 */
#define _3D_CHICKEN	0x02084
#define _3D_CHICKEN2	0x0208c
/* Disables pipelining of read flushes past the SF-WIZ interface.
 * Required on all Ironlake steppings according to the B-Spec, but the
 * particular danger of not doing so is not specified.
 */
# define _3D_CHICKEN2_WM_READ_PIPELINED			(1 << 14)
#define _3D_CHICKEN3	0x02090

#define MI_MODE		0x0209c
# define VS_TIMER_DISPATCH				(1 << 6)
# define MI_FLUSH_ENABLE				(1 << 12)

#define GFX_MODE	0x02520
#define GFX_MODE_GEN7	0x0229c
#define RING_MODE_GEN7(ring)	((ring)->mmio_base+0x29c)
#define   GFX_RUN_LIST_ENABLE		(1<<15)
#define   GFX_TLB_INVALIDATE_ALWAYS	(1<<13)
#define   GFX_SURFACE_FAULT_ENABLE	(1<<12)
#define   GFX_REPLAY_MODE		(1<<11)
#define   GFX_PSMI_GRANULARITY		(1<<10)
#define   GFX_PPGTT_ENABLE		(1<<9)

#define GFX_MODE_ENABLE(bit) (((bit) << 16) | (bit))
#define GFX_MODE_DISABLE(bit) (((bit) << 16) | (0))

#define SCPD0		0x0209c /* 915+ only */
#define IER		0x020a0
#define IIR		0x020a4
#define IMR		0x020a8
#define ISR		0x020ac
#define VLV_IIR_RW	0x182084
#define VLV_IER		0x1820a0
#define VLV_IIR		0x1820a4
#define VLV_IMR		0x1820a8
#define VLV_ISR		0x1820ac
#define   I915_PIPE_CONTROL_NOTIFY_INTERRUPT		(1<<18)
#define   I915_DISPLAY_PORT_INTERRUPT			(1<<17)
#define   I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT	(1<<15)
#define   I915_GMCH_THERMAL_SENSOR_EVENT_INTERRUPT	(1<<14) /* p-state */
#define   I915_HWB_OOM_INTERRUPT			(1<<13)
#define   I915_SYNC_STATUS_INTERRUPT			(1<<12)
#define   I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT	(1<<11)
#define   I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT	(1<<10)
#define   I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT	(1<<9)
#define   I915_DISPLAY_PLANE_C_FLIP_PENDING_INTERRUPT	(1<<8)
#define   I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT		(1<<7)
#define   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT		(1<<6)
#define   I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT		(1<<5)
#define   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT		(1<<4)
#define   I915_DEBUG_INTERRUPT				(1<<2)
#define   I915_USER_INTERRUPT				(1<<1)
#define   I915_ASLE_INTERRUPT				(1<<0)
#define   I915_BSD_USER_INTERRUPT                      (1<<25)
#define EIR		0x020b0
#define EMR		0x020b4
#define ESR		0x020b8
#define   GM45_ERROR_PAGE_TABLE				(1<<5)
#define   GM45_ERROR_MEM_PRIV				(1<<4)
#define   I915_ERROR_PAGE_TABLE				(1<<4)
#define   GM45_ERROR_CP_PRIV				(1<<3)
#define   I915_ERROR_MEMORY_REFRESH			(1<<1)
#define   I915_ERROR_INSTRUCTION			(1<<0)
#define INSTPM	        0x020c0
#define   INSTPM_SELF_EN (1<<12) /* 915GM only */
#define   INSTPM_AGPBUSY_DIS (1<<11) /* gen3: when disabled, pending interrupts
					will not assert AGPBUSY# and will only
					be delivered when out of C3. */
#define   INSTPM_FORCE_ORDERING				(1<<7) /* GEN6+ */
#define ACTHD	        0x020c8
#define FW_BLC		0x020d8
#define FW_BLC2		0x020dc
#define FW_BLC_SELF	0x020e0 /* 915+ only */
#define   FW_BLC_SELF_EN_MASK      (1<<31)
#define   FW_BLC_SELF_FIFO_MASK    (1<<16) /* 945 only */
#define   FW_BLC_SELF_EN           (1<<15) /* 945 only */
#define MM_BURST_LENGTH     0x00700000
#define MM_FIFO_WATERMARK   0x0001F000
#define LM_BURST_LENGTH     0x00000700
#define LM_FIFO_WATERMARK   0x0000001F
#define MI_ARB_STATE	0x020e4 /* 915+ only */
#define   MI_ARB_MASK_SHIFT	  16	/* shift for enable bits */

/* Make render/texture TLB fetches lower priorty than associated data
 *   fetches. This is not turned on by default
 */
#define   MI_ARB_RENDER_TLB_LOW_PRIORITY	(1 << 15)

/* Isoch request wait on GTT enable (Display A/B/C streams).
 * Make isoch requests stall on the TLB update. May cause
 * display underruns (test mode only)
 */
#define   MI_ARB_ISOCH_WAIT_GTT			(1 << 14)

/* Block grant count for isoch requests when block count is
 * set to a finite value.
 */
#define   MI_ARB_BLOCK_GRANT_MASK		(3 << 12)
#define   MI_ARB_BLOCK_GRANT_8			(0 << 12)	/* for 3 display planes */
#define   MI_ARB_BLOCK_GRANT_4			(1 << 12)	/* for 2 display planes */
#define   MI_ARB_BLOCK_GRANT_2			(2 << 12)	/* for 1 display plane */
#define   MI_ARB_BLOCK_GRANT_0			(3 << 12)	/* don't use */

/* Enable render writes to complete in C2/C3/C4 power states.
 * If this isn't enabled, render writes are prevented in low
 * power states. That seems bad to me.
 */
#define   MI_ARB_C3_LP_WRITE_ENABLE		(1 << 11)

/* This acknowledges an async flip immediately instead
 * of waiting for 2TLB fetches.
 */
#define   MI_ARB_ASYNC_FLIP_ACK_IMMEDIATE	(1 << 10)

/* Enables non-sequential data reads through arbiter
 */
#define   MI_ARB_DUAL_DATA_PHASE_DISABLE	(1 << 9)

/* Disable FSB snooping of cacheable write cycles from binner/render
 * command stream
 */
#define   MI_ARB_CACHE_SNOOP_DISABLE		(1 << 8)

/* Arbiter time slice for non-isoch streams */
#define   MI_ARB_TIME_SLICE_MASK		(7 << 5)
#define   MI_ARB_TIME_SLICE_1			(0 << 5)
#define   MI_ARB_TIME_SLICE_2			(1 << 5)
#define   MI_ARB_TIME_SLICE_4			(2 << 5)
#define   MI_ARB_TIME_SLICE_6			(3 << 5)
#define   MI_ARB_TIME_SLICE_8			(4 << 5)
#define   MI_ARB_TIME_SLICE_10			(5 << 5)
#define   MI_ARB_TIME_SLICE_14			(6 << 5)
#define   MI_ARB_TIME_SLICE_16			(7 << 5)

/* Low priority grace period page size */
#define   MI_ARB_LOW_PRIORITY_GRACE_4KB		(0 << 4)	/* default */
#define   MI_ARB_LOW_PRIORITY_GRACE_8KB		(1 << 4)

/* Disable display A/B trickle feed */
#define   MI_ARB_DISPLAY_TRICKLE_FEED_DISABLE	(1 << 2)

/* Set display plane priority */
#define   MI_ARB_DISPLAY_PRIORITY_A_B		(0 << 0)	/* display A > display B */
#define   MI_ARB_DISPLAY_PRIORITY_B_A		(1 << 0)	/* display B > display A */

#define CACHE_MODE_0	0x02120 /* 915+ only */
#define   CM0_MASK_SHIFT          16
#define   CM0_IZ_OPT_DISABLE      (1<<6)
#define   CM0_ZR_OPT_DISABLE      (1<<5)
#define   CM0_DEPTH_EVICT_DISABLE (1<<4)
#define   CM0_COLOR_EVICT_DISABLE (1<<3)
#define   CM0_DEPTH_WRITE_DISABLE (1<<1)
#define   CM0_RC_OP_FLUSH_DISABLE (1<<0)
#define BB_ADDR		0x02140 /* 8 bytes */
#define GFX_FLSH_CNTL	0x02170 /* 915+ only */
#define ECOSKPD		0x021d0
#define   ECO_GATING_CX_ONLY	(1<<3)
#define   ECO_FLIP_DONE		(1<<0)

#define CACHE_MODE_1		0x7004 /* IVB+ */
#define   PIXEL_SUBSPAN_COLLECT_OPT_DISABLE (1<<6)

/* GEN6 interrupt control */
#define GEN6_RENDER_HWSTAM	0x2098
#define GEN6_RENDER_IMR		0x20a8
#define   GEN6_RENDER_CONTEXT_SWITCH_INTERRUPT		(1 << 8)
#define   GEN6_RENDER_PPGTT_PAGE_FAULT			(1 << 7)
#define   GEN6_RENDER_TIMEOUT_COUNTER_EXPIRED		(1 << 6)
#define   GEN6_RENDER_L3_PARITY_ERROR			(1 << 5)
#define   GEN6_RENDER_PIPE_CONTROL_NOTIFY_INTERRUPT	(1 << 4)
#define   GEN6_RENDER_COMMAND_PARSER_MASTER_ERROR	(1 << 3)
#define   GEN6_RENDER_SYNC_STATUS			(1 << 2)
#define   GEN6_RENDER_DEBUG_INTERRUPT			(1 << 1)
#define   GEN6_RENDER_USER_INTERRUPT			(1 << 0)

#define GEN6_BLITTER_HWSTAM	0x22098
#define GEN6_BLITTER_IMR	0x220a8
#define   GEN6_BLITTER_MI_FLUSH_DW_NOTIFY_INTERRUPT	(1 << 26)
#define   GEN6_BLITTER_COMMAND_PARSER_MASTER_ERROR	(1 << 25)
#define   GEN6_BLITTER_SYNC_STATUS			(1 << 24)
#define   GEN6_BLITTER_USER_INTERRUPT			(1 << 22)

#define GEN6_BLITTER_ECOSKPD	0x221d0
#define   GEN6_BLITTER_LOCK_SHIFT			16
#define   GEN6_BLITTER_FBC_NOTIFY			(1<<3)

#define GEN6_BSD_SLEEP_PSMI_CONTROL	0x12050
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_RC_ILDL_MESSAGE_MODIFY_MASK	(1 << 16)
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_RC_ILDL_MESSAGE_DISABLE		(1 << 0)
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_RC_ILDL_MESSAGE_ENABLE		0
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_IDLE_INDICATOR			(1 << 3)

#define GEN6_BSD_HWSTAM			0x12098
#define GEN6_BSD_IMR			0x120a8
#define   GEN6_BSD_USER_INTERRUPT	(1 << 12)

#define GEN6_BSD_RNCID			0x12198

/*
 * Framebuffer compression (915+ only)
 */

#define FBC_CFB_BASE		0x03200 /* 4k page aligned */
#define FBC_LL_BASE		0x03204 /* 4k page aligned */
#define FBC_CONTROL		0x03208
#define   FBC_CTL_EN		(1<<31)
#define   FBC_CTL_PERIODIC	(1<<30)
#define   FBC_CTL_INTERVAL_SHIFT (16)
#define   FBC_CTL_UNCOMPRESSIBLE (1<<14)
#define   FBC_CTL_C3_IDLE	(1<<13)
#define   FBC_CTL_STRIDE_SHIFT	(5)
#define   FBC_CTL_FENCENO	(1<<0)
#define FBC_COMMAND		0x0320c
#define   FBC_CMD_COMPRESS	(1<<0)
#define FBC_STATUS		0x03210
#define   FBC_STAT_COMPRESSING	(1<<31)
#define   FBC_STAT_COMPRESSED	(1<<30)
#define   FBC_STAT_MODIFIED	(1<<29)
#define   FBC_STAT_CURRENT_LINE	(1<<0)
#define FBC_CONTROL2		0x03214
#define   FBC_CTL_FENCE_DBL	(0<<4)
#define   FBC_CTL_IDLE_IMM	(0<<2)
#define   FBC_CTL_IDLE_FULL	(1<<2)
#define   FBC_CTL_IDLE_LINE	(2<<2)
#define   FBC_CTL_IDLE_DEBUG	(3<<2)
#define   FBC_CTL_CPU_FENCE	(1<<1)
#define   FBC_CTL_PLANEA	(0<<0)
#define   FBC_CTL_PLANEB	(1<<0)
#define FBC_FENCE_OFF		0x0321b
#define FBC_TAG			0x03300

#define FBC_LL_SIZE		(1536)

/* Framebuffer compression for GM45+ */
#define DPFC_CB_BASE		0x3200
#define DPFC_CONTROL		0x3208
#define   DPFC_CTL_EN		(1<<31)
#define   DPFC_CTL_PLANEA	(0<<30)
#define   DPFC_CTL_PLANEB	(1<<30)
#define   DPFC_CTL_FENCE_EN	(1<<29)
#define   DPFC_CTL_PERSISTENT_MODE	(1<<25)
#define   DPFC_SR_EN		(1<<10)
#define   DPFC_CTL_LIMIT_1X	(0<<6)
#define   DPFC_CTL_LIMIT_2X	(1<<6)
#define   DPFC_CTL_LIMIT_4X	(2<<6)
#define DPFC_RECOMP_CTL		0x320c
#define   DPFC_RECOMP_STALL_EN	(1<<27)
#define   DPFC_RECOMP_STALL_WM_SHIFT (16)
#define   DPFC_RECOMP_STALL_WM_MASK (0x07ff0000)
#define   DPFC_RECOMP_TIMER_COUNT_SHIFT (0)
#define   DPFC_RECOMP_TIMER_COUNT_MASK (0x0000003f)
#define DPFC_STATUS		0x3210
#define   DPFC_INVAL_SEG_SHIFT  (16)
#define   DPFC_INVAL_SEG_MASK	(0x07ff0000)
#define   DPFC_COMP_SEG_SHIFT	(0)
#define   DPFC_COMP_SEG_MASK	(0x000003ff)
#define DPFC_STATUS2		0x3214
#define DPFC_FENCE_YOFF		0x3218
#define DPFC_CHICKEN		0x3224
#define   DPFC_HT_MODIFY	(1<<31)

/* Framebuffer compression for Ironlake */
#define ILK_DPFC_CB_BASE	0x43200
#define ILK_DPFC_CONTROL	0x43208
/* The bit 28-8 is reserved */
#define   DPFC_RESERVED		(0x1FFFFF00)
#define ILK_DPFC_RECOMP_CTL	0x4320c
#define ILK_DPFC_STATUS		0x43210
#define ILK_DPFC_FENCE_YOFF	0x43218
#define ILK_DPFC_CHICKEN	0x43224
#define ILK_FBC_RT_BASE		0x2128
#define   ILK_FBC_RT_VALID	(1<<0)

#define ILK_DISPLAY_CHICKEN1	0x42000
#define   ILK_FBCQ_DIS		(1<<22)
#define	  ILK_PABSTRETCH_DIS	(1<<21)


/*
 * Framebuffer compression for Sandybridge
 *
 * The following two registers are of type GTTMMADR
 */
#define SNB_DPFC_CTL_SA		0x100100
#define   SNB_CPU_FENCE_ENABLE	(1<<29)
#define DPFC_CPU_FENCE_OFFSET	0x100104


/*
 * GPIO regs
 */
#define GPIOA			0x5010
#define GPIOB			0x5014
#define GPIOC			0x5018
#define GPIOD			0x501c
#define GPIOE			0x5020
#define GPIOF			0x5024
#define GPIOG			0x5028
#define GPIOH			0x502c
# define GPIO_CLOCK_DIR_MASK		(1 << 0)
# define GPIO_CLOCK_DIR_IN		(0 << 1)
# define GPIO_CLOCK_DIR_OUT		(1 << 1)
# define GPIO_CLOCK_VAL_MASK		(1 << 2)
# define GPIO_CLOCK_VAL_OUT		(1 << 3)
# define GPIO_CLOCK_VAL_IN		(1 << 4)
# define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
# define GPIO_DATA_DIR_MASK		(1 << 8)
# define GPIO_DATA_DIR_IN		(0 << 9)
# define GPIO_DATA_DIR_OUT		(1 << 9)
# define GPIO_DATA_VAL_MASK		(1 << 10)
# define GPIO_DATA_VAL_OUT		(1 << 11)
# define GPIO_DATA_VAL_IN		(1 << 12)
# define GPIO_DATA_PULLUP_DISABLE	(1 << 13)

#define GMBUS0			0x5100 /* clock/port select */
#define   GMBUS_RATE_100KHZ	(0<<8)
#define   GMBUS_RATE_50KHZ	(1<<8)
#define   GMBUS_RATE_400KHZ	(2<<8) /* reserved on Pineview */
#define   GMBUS_RATE_1MHZ	(3<<8) /* reserved on Pineview */
#define   GMBUS_HOLD_EXT	(1<<7) /* 300ns hold time, rsvd on Pineview */
#define   GMBUS_PORT_DISABLED	0
#define   GMBUS_PORT_SSC	1
#define   GMBUS_PORT_VGADDC	2
#define   GMBUS_PORT_PANEL	3
#define   GMBUS_PORT_DPC	4 /* HDMIC */
#define   GMBUS_PORT_DPB	5 /* SDVO, HDMIB */
#define   GMBUS_PORT_DPD	6 /* HDMID */
#define   GMBUS_PORT_RESERVED	7 /* 7 reserved */
#define   GMBUS_NUM_PORTS	(GMBUS_PORT_DPD - GMBUS_PORT_SSC + 1)
#define GMBUS1			0x5104 /* command/status */
#define   GMBUS_SW_CLR_INT	(1<<31)
#define   GMBUS_SW_RDY		(1<<30)
#define   GMBUS_ENT		(1<<29) /* enable timeout */
#define   GMBUS_CYCLE_NONE	(0<<25)
#define   GMBUS_CYCLE_WAIT	(1<<25)
#define   GMBUS_CYCLE_INDEX	(2<<25)
#define   GMBUS_CYCLE_STOP	(4<<25)
#define   GMBUS_BYTE_COUNT_SHIFT 16
#define   GMBUS_SLAVE_INDEX_SHIFT 8
#define   GMBUS_SLAVE_ADDR_SHIFT 1
#define   GMBUS_SLAVE_READ	(1<<0)
#define   GMBUS_SLAVE_WRITE	(0<<0)
#define GMBUS2			0x5108 /* status */
#define   GMBUS_INUSE		(1<<15)
#define   GMBUS_HW_WAIT_PHASE	(1<<14)
#define   GMBUS_STALL_TIMEOUT	(1<<13)
#define   GMBUS_INT		(1<<12)
#define   GMBUS_HW_RDY		(1<<11)
#define   GMBUS_SATOER		(1<<10)
#define   GMBUS_ACTIVE		(1<<9)
#define GMBUS3			0x510c /* data buffer bytes 3-0 */
#define GMBUS4			0x5110 /* interrupt mask (Pineview+) */
#define   GMBUS_SLAVE_TIMEOUT_EN (1<<4)
#define   GMBUS_NAK_EN		(1<<3)
#define   GMBUS_IDLE_EN		(1<<2)
#define   GMBUS_HW_WAIT_EN	(1<<1)
#define   GMBUS_HW_RDY_EN	(1<<0)
#define GMBUS5			0x5120 /* byte index */
#define   GMBUS_2BYTE_INDEX_EN	(1<<31)

/*
 * Clock control & power management
 */

#define VGA0	0x6000
#define VGA1	0x6004
#define VGA_PD	0x6010
#define   VGA0_PD_P2_DIV_4	(1 << 7)
#define   VGA0_PD_P1_DIV_2	(1 << 5)
#define   VGA0_PD_P1_SHIFT	0
#define   VGA0_PD_P1_MASK	(0x1f << 0)
#define   VGA1_PD_P2_DIV_4	(1 << 15)
#define   VGA1_PD_P1_DIV_2	(1 << 13)
#define   VGA1_PD_P1_SHIFT	8
#define   VGA1_PD_P1_MASK	(0x1f << 8)
#define _DPLL_A	0x06014
#define _DPLL_B	0x06018
#define DPLL(pipe) _PIPE(pipe, _DPLL_A, _DPLL_B)
#define   DPLL_VCO_ENABLE		(1 << 31)
#define   DPLL_DVO_HIGH_SPEED		(1 << 30)
#define   DPLL_EXT_BUFFER_ENABLE_VLV	(1 << 30)
#define   DPLL_SYNCLOCK_ENABLE		(1 << 29)
#define   DPLL_REFA_CLK_ENABLE_VLV	(1 << 29)
#define   DPLL_VGA_MODE_DIS		(1 << 28)
#define   DPLLB_MODE_DAC_SERIAL		(1 << 26) /* i915 */
#define   DPLLB_MODE_LVDS		(2 << 26) /* i915 */
#define   DPLL_MODE_MASK		(3 << 26)
#define   DPLL_DAC_SERIAL_P2_CLOCK_DIV_10 (0 << 24) /* i915 */
#define   DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 (1 << 24) /* i915 */
#define   DPLLB_LVDS_P2_CLOCK_DIV_14	(0 << 24) /* i915 */
#define   DPLLB_LVDS_P2_CLOCK_DIV_7	(1 << 24) /* i915 */
#define   DPLL_P2_CLOCK_DIV_MASK	0x03000000 /* i915 */
#define   DPLL_FPA01_P1_POST_DIV_MASK	0x00ff0000 /* i915 */
#define   DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW	0x00ff8000 /* Pineview */
#define   DPLL_INTEGRATED_CLOCK_VLV	(1<<13)

#define SRX_INDEX		0x3c4
#define SRX_DATA		0x3c5
#define SR01			1
#define SR01_SCREEN_OFF		(1<<5)

#define PPCR			0x61204
#define PPCR_ON			(1<<0)

#define DVOB			0x61140
#define DVOB_ON			(1<<31)
#define DVOC			0x61160
#define DVOC_ON			(1<<31)
#define LVDS			0x61180
#define LVDS_ON			(1<<31)

/* Scratch pad debug 0 reg:
 */
#define   DPLL_FPA01_P1_POST_DIV_MASK_I830	0x001f0000
/*
 * The i830 generation, in LVDS mode, defines P1 as the bit number set within
 * this field (only one bit may be set).
 */
#define   DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS	0x003f0000
#define   DPLL_FPA01_P1_POST_DIV_SHIFT	16
#define   DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW 15
/* i830, required in DVO non-gang */
#define   PLL_P2_DIVIDE_BY_4		(1 << 23)
#define   PLL_P1_DIVIDE_BY_TWO		(1 << 21) /* i830 */
#define   PLL_REF_INPUT_DREFCLK		(0 << 13)
#define   PLL_REF_INPUT_TVCLKINA	(1 << 13) /* i830 */
#define   PLL_REF_INPUT_TVCLKINBC	(2 << 13) /* SDVO TVCLKIN */
#define   PLLB_REF_INPUT_SPREADSPECTRUMIN (3 << 13)
#define   PLL_REF_INPUT_MASK		(3 << 13)
#define   PLL_LOAD_PULSE_PHASE_SHIFT		9
/* Ironlake */
# define PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT     9
# define PLL_REF_SDVO_HDMI_MULTIPLIER_MASK      (7 << 9)
# define PLL_REF_SDVO_HDMI_MULTIPLIER(x)	(((x)-1) << 9)
# define DPLL_FPA1_P1_POST_DIV_SHIFT            0
# define DPLL_FPA1_P1_POST_DIV_MASK             0xff

/*
 * Parallel to Serial Load Pulse phase selection.
 * Selects the phase for the 10X DPLL clock for the PCIe
 * digital display port. The range is 4 to 13; 10 or more
 * is just a flip delay. The default is 6
 */
#define   PLL_LOAD_PULSE_PHASE_MASK		(0xf << PLL_LOAD_PULSE_PHASE_SHIFT)
#define   DISPLAY_RATE_SELECT_FPA1		(1 << 8)
/*
 * SDVO multiplier for 945G/GM. Not used on 965.
 */
#define   SDVO_MULTIPLIER_MASK			0x000000ff
#define   SDVO_MULTIPLIER_SHIFT_HIRES		4
#define   SDVO_MULTIPLIER_SHIFT_VGA		0
#define _DPLL_A_MD 0x0601c /* 965+ only */
/*
 * UDI pixel divider, controlling how many pixels are stuffed into a packet.
 *
 * Value is pixels minus 1.  Must be set to 1 pixel for SDVO.
 */
#define   DPLL_MD_UDI_DIVIDER_MASK		0x3f000000
#define   DPLL_MD_UDI_DIVIDER_SHIFT		24
/* UDI pixel divider for VGA, same as DPLL_MD_UDI_DIVIDER_MASK. */
#define   DPLL_MD_VGA_UDI_DIVIDER_MASK		0x003f0000
#define   DPLL_MD_VGA_UDI_DIVIDER_SHIFT		16
/*
 * SDVO/UDI pixel multiplier.
 *
 * SDVO requires that the bus clock rate be between 1 and 2 Ghz, and the bus
 * clock rate is 10 times the DPLL clock.  At low resolution/refresh rate
 * modes, the bus rate would be below the limits, so SDVO allows for stuffing
 * dummy bytes in the datastream at an increased clock rate, with both sides of
 * the link knowing how many bytes are fill.
 *
 * So, for a mode with a dotclock of 65Mhz, we would want to double the clock
 * rate to 130Mhz to get a bus rate of 1.30Ghz.  The DPLL clock rate would be
 * set to 130Mhz, and the SDVO multiplier set to 2x in this register and
 * through an SDVO command.
 *
 * This register field has values of multiplication factor minus 1, with
 * a maximum multiplier of 5 for SDVO.
 */
#define   DPLL_MD_UDI_MULTIPLIER_MASK		0x00003f00
#define   DPLL_MD_UDI_MULTIPLIER_SHIFT		8
/*
 * SDVO/UDI pixel multiplier for VGA, same as DPLL_MD_UDI_MULTIPLIER_MASK.
 * This best be set to the default value (3) or the CRT won't work. No,
 * I don't entirely understand what this does...
 */
#define   DPLL_MD_VGA_UDI_MULTIPLIER_MASK	0x0000003f
#define   DPLL_MD_VGA_UDI_MULTIPLIER_SHIFT	0
#define _DPLL_B_MD 0x06020 /* 965+ only */
#define DPLL_MD(pipe) _PIPE(pipe, _DPLL_A_MD, _DPLL_B_MD)

#define _FPA0	0x06040
#define _FPA1	0x06044
#define _FPB0	0x06048
#define _FPB1	0x0604c
#define FP0(pipe) _PIPE(pipe, _FPA0, _FPB0)
#define FP1(pipe) _PIPE(pipe, _FPA1, _FPB1)
#define   FP_N_DIV_MASK		0x003f0000
#define   FP_N_PINEVIEW_DIV_MASK	0x00ff0000
#define   FP_N_DIV_SHIFT		16
#define   FP_M1_DIV_MASK	0x00003f00
#define   FP_M1_DIV_SHIFT		 8
#define   FP_M2_DIV_MASK	0x0000003f
#define   FP_M2_PINEVIEW_DIV_MASK	0x000000ff
#define   FP_M2_DIV_SHIFT		 0
#define DPLL_TEST	0x606c
#define   DPLLB_TEST_SDVO_DIV_1		(0 << 22)
#define   DPLLB_TEST_SDVO_DIV_2		(1 << 22)
#define   DPLLB_TEST_SDVO_DIV_4		(2 << 22)
#define   DPLLB_TEST_SDVO_DIV_MASK	(3 << 22)
#define   DPLLB_TEST_N_BYPASS		(1 << 19)
#define   DPLLB_TEST_M_BYPASS		(1 << 18)
#define   DPLLB_INPUT_BUFFER_ENABLE	(1 << 16)
#define   DPLLA_TEST_N_BYPASS		(1 << 3)
#define   DPLLA_TEST_M_BYPASS		(1 << 2)
#define   DPLLA_INPUT_BUFFER_ENABLE	(1 << 0)
#define D_STATE		0x6104
#define  DSTATE_GFX_RESET_I830			(1<<6)
#define  DSTATE_PLL_D3_OFF			(1<<3)
#define  DSTATE_GFX_CLOCK_GATING		(1<<1)
#define  DSTATE_DOT_CLOCK_GATING		(1<<0)
#define DSPCLK_GATE_D		0x6200
# define DPUNIT_B_CLOCK_GATE_DISABLE		(1 << 30) /* 965 */
# define VSUNIT_CLOCK_GATE_DISABLE		(1 << 29) /* 965 */
# define VRHUNIT_CLOCK_GATE_DISABLE		(1 << 28) /* 965 */
# define VRDUNIT_CLOCK_GATE_DISABLE		(1 << 27) /* 965 */
# define AUDUNIT_CLOCK_GATE_DISABLE		(1 << 26) /* 965 */
# define DPUNIT_A_CLOCK_GATE_DISABLE		(1 << 25) /* 965 */
# define DPCUNIT_CLOCK_GATE_DISABLE		(1 << 24) /* 965 */
# define TVRUNIT_CLOCK_GATE_DISABLE		(1 << 23) /* 915-945 */
# define TVCUNIT_CLOCK_GATE_DISABLE		(1 << 22) /* 915-945 */
# define TVFUNIT_CLOCK_GATE_DISABLE		(1 << 21) /* 915-945 */
# define TVEUNIT_CLOCK_GATE_DISABLE		(1 << 20) /* 915-945 */
# define DVSUNIT_CLOCK_GATE_DISABLE		(1 << 19) /* 915-945 */
# define DSSUNIT_CLOCK_GATE_DISABLE		(1 << 18) /* 915-945 */
# define DDBUNIT_CLOCK_GATE_DISABLE		(1 << 17) /* 915-945 */
# define DPRUNIT_CLOCK_GATE_DISABLE		(1 << 16) /* 915-945 */
# define DPFUNIT_CLOCK_GATE_DISABLE		(1 << 15) /* 915-945 */
# define DPBMUNIT_CLOCK_GATE_DISABLE		(1 << 14) /* 915-945 */
# define DPLSUNIT_CLOCK_GATE_DISABLE		(1 << 13) /* 915-945 */
# define DPLUNIT_CLOCK_GATE_DISABLE		(1 << 12) /* 915-945 */
# define DPOUNIT_CLOCK_GATE_DISABLE		(1 << 11)
# define DPBUNIT_CLOCK_GATE_DISABLE		(1 << 10)
# define DCUNIT_CLOCK_GATE_DISABLE		(1 << 9)
# define DPUNIT_CLOCK_GATE_DISABLE		(1 << 8)
# define VRUNIT_CLOCK_GATE_DISABLE		(1 << 7) /* 915+: reserved */
# define OVHUNIT_CLOCK_GATE_DISABLE		(1 << 6) /* 830-865 */
# define DPIOUNIT_CLOCK_GATE_DISABLE		(1 << 6) /* 915-945 */
# define OVFUNIT_CLOCK_GATE_DISABLE		(1 << 5)
# define OVBUNIT_CLOCK_GATE_DISABLE		(1 << 4)
/**
 * This bit must be set on the 830 to prevent hangs when turning off the
 * overlay scaler.
 */
# define OVRUNIT_CLOCK_GATE_DISABLE		(1 << 3)
# define OVCUNIT_CLOCK_GATE_DISABLE		(1 << 2)
# define OVUUNIT_CLOCK_GATE_DISABLE		(1 << 1)
# define ZVUNIT_CLOCK_GATE_DISABLE		(1 << 0) /* 830 */
# define OVLUNIT_CLOCK_GATE_DISABLE		(1 << 0) /* 845,865 */

#define RENCLK_GATE_D1		0x6204
# define BLITTER_CLOCK_GATE_DISABLE		(1 << 13) /* 945GM only */
# define MPEG_CLOCK_GATE_DISABLE		(1 << 12) /* 945GM only */
# define PC_FE_CLOCK_GATE_DISABLE		(1 << 11)
# define PC_BE_CLOCK_GATE_DISABLE		(1 << 10)
# define WINDOWER_CLOCK_GATE_DISABLE		(1 << 9)
# define INTERPOLATOR_CLOCK_GATE_DISABLE	(1 << 8)
# define COLOR_CALCULATOR_CLOCK_GATE_DISABLE	(1 << 7)
# define MOTION_COMP_CLOCK_GATE_DISABLE		(1 << 6)
# define MAG_CLOCK_GATE_DISABLE			(1 << 5)
/** This bit must be unset on 855,865 */
# define MECI_CLOCK_GATE_DISABLE		(1 << 4)
# define DCMP_CLOCK_GATE_DISABLE		(1 << 3)
# define MEC_CLOCK_GATE_DISABLE			(1 << 2)
# define MECO_CLOCK_GATE_DISABLE		(1 << 1)
/** This bit must be set on 855,865. */
# define SV_CLOCK_GATE_DISABLE			(1 << 0)
# define I915_MPEG_CLOCK_GATE_DISABLE		(1 << 16)
# define I915_VLD_IP_PR_CLOCK_GATE_DISABLE	(1 << 15)
# define I915_MOTION_COMP_CLOCK_GATE_DISABLE	(1 << 14)
# define I915_BD_BF_CLOCK_GATE_DISABLE		(1 << 13)
# define I915_SF_SE_CLOCK_GATE_DISABLE		(1 << 12)
# define I915_WM_CLOCK_GATE_DISABLE		(1 << 11)
# define I915_IZ_CLOCK_GATE_DISABLE		(1 << 10)
# define I915_PI_CLOCK_GATE_DISABLE		(1 << 9)
# define I915_DI_CLOCK_GATE_DISABLE		(1 << 8)
# define I915_SH_SV_CLOCK_GATE_DISABLE		(1 << 7)
# define I915_PL_DG_QC_FT_CLOCK_GATE_DISABLE	(1 << 6)
# define I915_SC_CLOCK_GATE_DISABLE		(1 << 5)
# define I915_FL_CLOCK_GATE_DISABLE		(1 << 4)
# define I915_DM_CLOCK_GATE_DISABLE		(1 << 3)
# define I915_PS_CLOCK_GATE_DISABLE		(1 << 2)
# define I915_CC_CLOCK_GATE_DISABLE		(1 << 1)
# define I915_BY_CLOCK_GATE_DISABLE		(1 << 0)

# define I965_RCZ_CLOCK_GATE_DISABLE		(1 << 30)
/** This bit must always be set on 965G/965GM */
# define I965_RCC_CLOCK_GATE_DISABLE		(1 << 29)
# define I965_RCPB_CLOCK_GATE_DISABLE		(1 << 28)
# define I965_DAP_CLOCK_GATE_DISABLE		(1 << 27)
# define I965_ROC_CLOCK_GATE_DISABLE		(1 << 26)
# define I965_GW_CLOCK_GATE_DISABLE		(1 << 25)
# define I965_TD_CLOCK_GATE_DISABLE		(1 << 24)
/** This bit must always be set on 965G */
# define I965_ISC_CLOCK_GATE_DISABLE		(1 << 23)
# define I965_IC_CLOCK_GATE_DISABLE		(1 << 22)
# define I965_EU_CLOCK_GATE_DISABLE		(1 << 21)
# define I965_IF_CLOCK_GATE_DISABLE		(1 << 20)
# define I965_TC_CLOCK_GATE_DISABLE		(1 << 19)
# define I965_SO_CLOCK_GATE_DISABLE		(1 << 17)
# define I965_FBC_CLOCK_GATE_DISABLE		(1 << 16)
# define I965_MARI_CLOCK_GATE_DISABLE		(1 << 15)
# define I965_MASF_CLOCK_GATE_DISABLE		(1 << 14)
# define I965_MAWB_CLOCK_GATE_DISABLE		(1 << 13)
# define I965_EM_CLOCK_GATE_DISABLE		(1 << 12)
# define I965_UC_CLOCK_GATE_DISABLE		(1 << 11)
# define I965_SI_CLOCK_GATE_DISABLE		(1 << 6)
# define I965_MT_CLOCK_GATE_DISABLE		(1 << 5)
# define I965_PL_CLOCK_GATE_DISABLE		(1 << 4)
# define I965_DG_CLOCK_GATE_DISABLE		(1 << 3)
# define I965_QC_CLOCK_GATE_DISABLE		(1 << 2)
# define I965_FT_CLOCK_GATE_DISABLE		(1 << 1)
# define I965_DM_CLOCK_GATE_DISABLE		(1 << 0)

#define RENCLK_GATE_D2		0x6208
#define VF_UNIT_CLOCK_GATE_DISABLE		(1 << 9)
#define GS_UNIT_CLOCK_GATE_DISABLE		(1 << 7)
#define CL_UNIT_CLOCK_GATE_DISABLE		(1 << 6)
#define RAMCLK_GATE_D		0x6210		/* CRL only */
#define DEUC			0x6214          /* CRL only */

#define FW_BLC_SELF_VLV		0x6500
#define  FW_CSPWRDWNEN		(1<<15)

/*
 * Palette regs
 */

#define _PALETTE_A		0x0a000
#define _PALETTE_B		0x0a800
#define PALETTE(pipe) _PIPE(pipe, _PALETTE_A, _PALETTE_B)

/* MCH MMIO space */

/*
 * MCHBAR mirror.
 *
 * This mirrors the MCHBAR MMIO space whose location is determined by
 * device 0 function 0's pci config register 0x44 or 0x48 and matches it in
 * every way.  It is not accessible from the CP register read instructions.
 *
 */
#define MCHBAR_MIRROR_BASE	0x10000

#define MCHBAR_MIRROR_BASE_SNB	0x140000

/** 915-945 and GM965 MCH register controlling DRAM channel access */
#define DCC			0x10200
#define DCC_ADDRESSING_MODE_SINGLE_CHANNEL		(0 << 0)
#define DCC_ADDRESSING_MODE_DUAL_CHANNEL_ASYMMETRIC	(1 << 0)
#define DCC_ADDRESSING_MODE_DUAL_CHANNEL_INTERLEAVED	(2 << 0)
#define DCC_ADDRESSING_MODE_MASK			(3 << 0)
#define DCC_CHANNEL_XOR_DISABLE				(1 << 10)
#define DCC_CHANNEL_XOR_BIT_17				(1 << 9)

/** Pineview MCH register contains DDR3 setting */
#define CSHRDDR3CTL            0x101a8
#define CSHRDDR3CTL_DDR3       (1 << 2)

/** 965 MCH register controlling DRAM channel configuration */
#define C0DRB3			0x10206
#define C1DRB3			0x10606

/** snb MCH registers for reading the DRAM channel configuration */
#define MAD_DIMM_C0			(MCHBAR_MIRROR_BASE_SNB + 0x5004)
#define MAD_DIMM_C1			(MCHBAR_MIRROR_BASE_SNB + 0x5008)
#define MAD_DIMM_C2			(MCHBAR_MIRROR_BASE_SNB + 0x500C)
#define   MAD_DIMM_ECC_MASK		(0x3 << 24)
#define   MAD_DIMM_ECC_OFF		(0x0 << 24)
#define   MAD_DIMM_ECC_IO_ON_LOGIC_OFF	(0x1 << 24)
#define   MAD_DIMM_ECC_IO_OFF_LOGIC_ON	(0x2 << 24)
#define   MAD_DIMM_ECC_ON		(0x3 << 24)
#define   MAD_DIMM_ENH_INTERLEAVE	(0x1 << 22)
#define   MAD_DIMM_RANK_INTERLEAVE	(0x1 << 21)
#define   MAD_DIMM_B_WIDTH_X16		(0x1 << 20) /* X8 chips if unset */
#define   MAD_DIMM_A_WIDTH_X16		(0x1 << 19) /* X8 chips if unset */
#define   MAD_DIMM_B_DUAL_RANK		(0x1 << 18)
#define   MAD_DIMM_A_DUAL_RANK		(0x1 << 17)
#define   MAD_DIMM_A_SELECT		(0x1 << 16)
/* DIMM sizes are in multiples of 256mb. */
#define   MAD_DIMM_B_SIZE_SHIFT		8
#define   MAD_DIMM_B_SIZE_MASK		(0xff << MAD_DIMM_B_SIZE_SHIFT)
#define   MAD_DIMM_A_SIZE_SHIFT		0
#define   MAD_DIMM_A_SIZE_MASK		(0xff << MAD_DIMM_A_SIZE_SHIFT)


/* Clocking configuration register */
#define CLKCFG			0x10c00
#define CLKCFG_FSB_400					(5 << 0)	/* hrawclk 100 */
#define CLKCFG_FSB_533					(1 << 0)	/* hrawclk 133 */
#define CLKCFG_FSB_667					(3 << 0)	/* hrawclk 166 */